<!DOCTYPE html>
<body>
  <script src=/resources/testharness.js></script>
  <script src=/resources/testharnessreport.js></script>
  <script src=/permissions-policy/resources/permissions-policy.js></script>
  <!-- Permissions-Policy: fullscreen=(); -->
  <script>
  'use strict';
  var same_origin = 'https://{{domains[]}}:{{ports[https][0]}}';
  var cross_origin = 'https://{{domains[www]}}:{{ports[https][0]}}';
  var same_origin_src = '/permissions-policy/resources/permissions-policy-allowedfeatures.html';
  var cross_origin_src = cross_origin + same_origin_src;
  var header_policy = 'Permissions-Policy: fullscreen=()';

  // Test that fullscreen's allowlist is []
  test(function() {
    assert_array_equals(
      document.featurePolicy.getAllowlistForFeature('fullscreen'),
      []);
    assert_false(document.fullscreenEnabled, "fullscreenEnabled should reflect permissions policy properly");
  }, header_policy + ' -- test allowlist is []');

  // Test that fullscreen is disallowed on all subframes.
  test_disallowed_feature_for_subframe(
    header_policy + ' -- test fullscreen is disallowed on same-origin subframe',
    'fullscreen',
    same_origin_src);
  test_disallowed_feature_for_subframe(
    header_policy + ' -- test fullscreen is disallowed on cross-origin subframe',
    'fullscreen',
    cross_origin_src);

  // Dynamically update sub frame's container policy
  var allow = "fullscreen 'src';"
  test_disallowed_feature_for_subframe(
    header_policy + ', iframe.allow = ' + allow + ' -- test fullscreen is disallowed on same-origin subframe',
    'fullscreen',
    same_origin_src,
    allow);
  test_disallowed_feature_for_subframe(
    header_policy + ', iframe.allow = ' + allow + ' -- test fullscreen is disallowed on cross-origin subframe',
    'fullscreen',
    cross_origin_src,
    allow);
  </script>
</body>
